MIT researchers have introduced an origami‑based construction approach that folds flat sheets into rigid shells, cutting costs and material consumption.
The system breaks the structure into modular units; each unit combines two tripod‑shaped cells derived from Resch tessellations, yielding zero degrees of freedom. Once folded, the units lock together, forming an interwoven beam network with exceptional stiffness and low weight.
To avoid manual design bottlenecks, Parra Rubio teamed with CBA graduate Erik Strand to build an automated solver. The solver decomposes the overall problem into many small sub‑problems, verifies foldability of each cell, then assembles them globally, outputting CNC‑ready files that cut the units from flat sheets such as aluminum.
Assembly requires only hand tools like screwdrivers—no large‑scale welding—because the connections are self‑aligning. The design forces the structure into a single configuration, ensuring natural alignment during construction.
Simulations show the resulting structures are about 3.5 × stiffer than those from other origami techniques while using roughly two‑thirds of the material, making the method attractive for disaster‑relief shelters, lightweight aircraft components, modular robots, acoustic panels, and building façades.
The team demonstrated the concept with a 23‑foot folded aluminum sculpture hung in the atrium of the Boston Public Library, built by a crew with no professional construction experience in just a few days.
Future work aims at scaling to larger architectural projects, exploring more complex unit geometries, and creating a user‑friendly design interface, bringing folded metal from the lab to real‑world construction sites.
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